Most Powerful Rocket Engine

When I search for 'most powerful rocket engine' on Google, I found the answer is the F-1 engine, used on the Saturn V. It generates 6,770 kN of thrust.
However, in my opinion, the most powerful rocket engine is Space Shuttle Solid Rocket Boosters. They generates 12,000 kN of thrust.

Comments

The Saturn V's F-1 engine is the most powerful LIQUID-FUELED engine in the world, while the Shuttle SRBs are the most powerful SOLID-FUELED engines.

In addition, the Falcon 9's Merlin 1D, Proton-K's RD-253, and the N1's NK-33 engines are quite powerful as well. They have the highest specific impulses, and thrust-to-weight ratios of any Earth-launchable engine in the world